Biogas production from different waste resources still has limitations due to its complex
structure and slowly biodegradable nature. To improve methane yield and anaerobic …

This paper reviews pretreatment techniques to enhance the anaerobic digestion of organic
solid waste, including mechanical, thermal, chemical and biological methods. The effects of …

With the development of cities and population, the production of sludge is increasing
annually. It has become an unavoidable challenge to achieve sludge dewatering and …

Utilization of waste sludge as a renewable resource for energy recovery is the appropriate
solution of how to manage the continuously increasing waste sludge generation effectively …

This paper presents a review of the main sludge treatment techniques used as a
pretreatment to anaerobic digestion. These processes include biological (largely thermal …

The production and management of sludge in wastewater treatment plants is a significant
environmental issue. Sludge is a complex material, treated primarily by biological …

During wastewater treatment, most organic matter is transferred to a solid phase commonly
known as sludge or biosolids. The high cost of sludge management and the growing interest …

Most of the pretreatments to sewage sludge in lab-scale studies show high potentials to be
implemented in an anaerobic digester since they produce an increase in the biogas …

In recent years, microwave (MW) irradiation has gained widespread popularity as an
effective thermal method for sludge treatment, mainly due to its rapid and selective heating …

The study reported and analyzed the current state of wastewater treatment plants (WWTPs)
in urban China from the aspects of scale, treatment processes, sludge handling …